一价的

Their cation binding behavior to alkali and heavy metal ions was evaluated by solvent extraction of aqueous metal picrates.

进而采用溶剂萃取的方法研究了它们与一价金属阳离子的键合行为。

Based on the pioneers' research work, the theoretical calculations have been performed on the interactions between the alkaline earth ions and aromatic systems.

在前人研究一价离子的基础上，进一步研究了金属离子，特别是碱土金属离子与芳环体系的相互作用。

The invention relates to a method for making oligomeric isocyanates by reacting diisocyanates in the presence of a catalyst, wherein the catalyst comprises a saline compound prepared from an anion selected from 1,2,3- or 1,2,4-triazole, a substituted species of 1,2,3- or 1,2,4-triazole and carbocyclically and/or heterocyclically annellated species of 1,2,3- or 1,2,4-triazole and the cation selected from an alkali metal, alkaline-earth metal and/or monovalent ammonium cation and/or phosphonium cation of formula (5), wherein the E, R1, R2, R3, R4 are as defined in the descriotion.

本发明涉及一种制备低聚异氰酸酯的方法，包括二异氰酸酯在催化剂的存在下进行反应，其中所述催化剂由盐化合物组成，该盐化合物由选自1，2，3-或1，2，4-三唑、1，2，3-或1，2，4-三唑的取代系列者、1，2，4-三唑的碳环稠合系列者、1，2，3-或1，2，4-三唑的杂环稠合系列者的化合物及其混合物的阴离子和选自碱金属、碱土金属和/或通式(5)的一价铵阳离子和/或磷友衾胱拥难衾胱又票福其中E、R 1 、R 2 、R 3 和R 4 如说明书中所定义。

In Chapter 4, bivalent metal ions and imidazolate derivatives were selected to construct three-dimensional 4-connected networks with tetrahedral nodes.

因此该章为拓扑网络的构筑提出一个新的思路，并且进一步证明了一价d〓金属离子间存在着相互吸引作用。

A cataphoresis discharge tube of 7mm inner diameter and 38cm active length was made for the He-Sr+ laser. The recombination laser at 430.5nm and the R-M transition laser at 1.03μm were obtained with the modified Blumlein circuit by high-frequency longitudinal pulsed discharge. The laser components are concentrated on the 430.5nm wavelength.

设计制作了7mm内径和38cm有效激励长度的电泳式He-Sr+激光管，采用修饰Blumlein电路，通过纵向高重复率脉冲放电激励，实现了一价锶离子复合激光430.5nm和R-M跃迁激光1.03μm的同时振荡，其中复合激光占主要成分。

The univalent radical, COOH, the functional group characteristic of all organic acids.

羧基：一价根COOH，一切有机酸的功能组合的性质

A two-fold penetration coordination polymer n (1)(bpy=4,4'-bipyridyl) has been synthesized through hydrothermal reaction and structurally characterized by single crystal X-ray diffraction method.

利用水热反应，合成了一个具有二重穿插结构的一价铜配位聚合物n(1)(bpy=4，4'-联吡啶)，并利用元素分析，X射线单晶衍射，红外光谱以及热重分析等手段对标题化合物进行了表征。

Firstly,two novel rare earth complexes(CH_2=CHO)Ln~Ⅲ[2,6-_2PhNSiMe _3]_2Li_3Ln=Y(2,Yb(3)containing arylamido and enolate mixed ligands have been synthesized by treatment of 2 equiv of of 2,6-~iPr_2PhNHSiMe_3 with exces n-BuLi at -78℃in THF for 12h,followed by reaction with 1 equiv of LnCl_3at 80℃for 24h in one-pot.All the two compounds were characterized by spectroscopic methods,elemental analyses,and a single-crystal X-ray diffraction study.

首先，-78℃下，在两当量的2，6-~iPr_2PhNHSiMe_3(1)THF溶液中加入过量的n-BuLi，反应12小时，再加入一当量的LnCl_380℃下，反应24小时，一锅法合成了含胺基、乙烯醇基混合配体的新型稀土金属配合物(CH_2=CHO)Ln~Ⅲ[2，6-_2PhNSiMe_3]_2Li_3Ln=Y(2、Yb(3)，上述化合物结构经单晶X-ray衍射、光谱和元素分析表征，表明我们得到的是一类新型的三价稀土配合物。

The univalent group N3- derived from hydrazoic acid.

从叠氮酸衍生而来的一价基 n。

It is understood that the current mill is no longer the Association in accordance with the procurement prices of the three major iron ore mines, and in time pending the outcome of the negotiations, procurement and settlement systems, very confused, almost a price of a factory, a steel prices in accordance with the long-HS 60%-80% open letters of credit to the supplier.

据了解，由于目前钢厂已经不按长协价格采购三大矿山的铁矿，而在谈判未有结果的时候，采购结算体系极为混乱，几乎是一厂一价，有钢厂按照长协价格的60％-80％给供应商开信用证。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。